/*
 * Licensed to Nanjing RedOrange Co. ltd (RedOrange) under one or more
 * contributor license agreements. See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * RedOrange licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations
 * under the License.
 */
package redora.rdo.api;

import java.util.Set;

/**
 * PersistableNtoMSet adds house keeping functionality for relatioships with
 * n-to-m multipicity. This added functionality is needed because both parts of
 * the relationship in itself are unaware of their relation, so this set will
 * keep track of both added and removed relations.
 * 
 * @author jaap
 * @see Persistable
 */
public interface PersistableNtoMSet<E> extends PersistableSet<E> {
	public abstract Set<Long> getAddedObjects();
}
